Aeroplane lifting device



Feb. 16, 1932. F. G. RUNGE 1,845,561

AEROPLANE LIFTING DEVICE Filed March 19, 1931 Patented Feb. 16, 1932 UNITED STATES PATENT `oFFlcF.

FRED GEORGE RUNGE, or NEW Yoan-N1.

AEROPLANE LIETINGDEVICE A Application led March 19, 1931. Serial No. 523,843.

The invention appertains to a combined helicopter and aeroplane, having for its prinl cipal object an inside built device for launching and` landing air-vehicles particularly aeroplanes.

t The principal part of my invention is, that the lifting device is built on the inside of the fuselage, therefore doing away with the danger of having it seriously damaged in lo case of an accident. y

Another important part is the combination of two or more tubes (Fig. I is showing '6) v in lwhich propellers are located, which can nection with the large gearwheel 3, rotates f the small gearwheel 9, and therefore4 giving the propellers 2 a high speed..` I

Fig. II shows a sideviewv also the inside of the tubes 1. On shafts 10 which 'run from top to the bottom of the fuselage 4 are fastened the propellers 2, which are about if; of

the tube in size, and have the shape `of a `turbine or screw. When the propellers 2 are put in operation, they will ltake the air 1n on the top and by pushing it out on the bot- I tom will give the necessary lifting power. In order to get more lifting power, ad

tional propellers can be placed on top of each tube as N o. 7 shown in Figs. II and III.

Fig. III shows an aeroplane .(sideview) whereof from the entire lifting device, the large wheel 3, at the bottom and the additional propellers can only 'be seen.

What I claim is: A helicopter comprising an annular series of vertical tubes, a helicopter propeller in each tube including its shaft and gear thereon,-and a centrally disposed large driving gear in mesh with all the helicopter gears.-

' FRED GEORGE RUNGE. 

